Temperature Measurements of Optically Cooled Calcium Atoms Using Differential Two-Photon Spectroscopy

B. B. Zelener; A. A. Bobrov; E. V. Vilshanskaya; I. D. Arshinova; S. A. Saakyan; V. A. Sautenkov; B. V. Zelener; V. E. Fortov

doi:10.1134/S1028335819030170

Temperature Measurements of Optically Cooled Calcium Atoms Using Differential Two-Photon Spectroscopy

Authors: Zelener B.B.¹, Bobrov A.A.¹, Vilshanskaya E.V.¹, Arshinova I.D.¹, Saakyan S.A.¹, Sautenkov V.A.¹, Zelener B.V.¹, Fortov V.E.¹
Affiliations:
1. Joint Institute for High Temperatures, Russian Academy of Sciences
Issue: Vol 64, No 3 (2019)
Pages: 94-96
Section: Physics
URL: https://journals.rcsi.science/1028-3358/article/view/193241
DOI: https://doi.org/10.1134/S1028335819030170
ID: 193241

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Abstract

A differential two-photon method of measuring the temperature of ⁴⁰Ca atoms in a continuously operating magneto-optical trap is demonstrated. Coherent two-photon resonances at the 4s²¹S₀–50¹S₀ Rydberg transition have been investigated experimentally using resonance laser beams propagating at different angles. The temperature of the cloud of ⁴⁰Ca atoms was measured depending on the frequency detuning of the cooling laser radiation.